3. Once the correct Device Cloud Server setting is Saved, the Gateway can either be Disconnected or Rebooted from the Device Cloud --- Device Manager --- Devices page. When the Gateway re-connects to the Device Cloud, it will be doing so at the newly configured Device Cloud Server address.

3. Log out from the server you re-configured your Gateway from in step 2, and check the new Device Cloud server address you Saved.

If your Gateway still shows a Status of Disconnected on the intended Device Cloud server, check the original Device Cloud server the Gateway was first connected with, to unsure it didn't show up there (i.e. maybe the change wasn't Saved). If the Gateway can't be found on either the "before" or "after" Device Cloud servers, check the Device Cloud server address via the Gateway WebUI, to ensure you didn't make a typo or something:

In Closure: If all went well, your Gateway should be "Connected" with the new Device Cloud server address you configured in Step 2. If this isn't the case, manually power cycle your Gateway, wait a couple minutes, then check again. If this still isn't working, you may need to contact Digi Technical Support for assistance.